Can anyone tell me why I Can't switch between listening modes on my NAD T763. I checked all I could, but no luck. It used to work great, but now the only mode I have is STEREO. Can't switch between modes, neither in CD or DVD mode. My DVD connected through coaxial and CD through optical connections. Please help if you know how to fix this. Manual doesn't address this issue.
Check your A B speakers. You might have accidentally turned on your B speakers which eliminates your ability to use any of these surround modes. I have done it several times. The remote has the small buttons which you can accidentally push.